Aplicación de un subproducto del procesamiento de guayaba en un Ultisol, en presencia y en ausencia de fertilización mineral
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Data
2013-10-01
Autores
Eduardo Rozane, Danilo [UNESP]
Hortense Torres, Mariana [UNESP]
Antunes de Souza, Henrique
Natale, William [UNESP]
Gorla da Silva, Silvia Helena Modenese [UNESP]
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Resumo
There is a relative lack of technical studies on the adequate management of organic wastes from food processing. The aim of this study was to evaluate the effect of applying doses of a byproduct from guava processing, in the presence and absence of mineral fertilization, on the fertility of a an Ultisol (or Red-Yellow Argisol) under laboratory conditions. An entirely randomized 5x2 factorial experimental design was used with five byproduct doses, in the presence and absence of mineral fertilization, with four repetitions, for a total of 40 experimental units. Under the experimental conditions, the attributes pH, OM, K, Mg, BS, T, V, B, Fe, Zn and S-SO42- were affected by the guava byproduct doses, as well as by the presence or absence of mineral fertilization. With the use of this fertilization, the variables OM, K, H+Al, T, Fe and Zn increased more as a function of byproduct dose than in the absence of fertilization. The results obtained demonstrate the potential of using this waste material in the cycling and supply of nutrients.
Descrição
Palavras-chave
Guava, Guava residue, Orchard, Organic fertilization, Psidium guajava
Como citar
Idesia, v. 31, n. 3, p. 89-96, 2013.